JP6722027B2 - Oil adsorption device - Google Patents

Oil adsorption device Download PDF

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JP6722027B2
JP6722027B2 JP2016077081A JP2016077081A JP6722027B2 JP 6722027 B2 JP6722027 B2 JP 6722027B2 JP 2016077081 A JP2016077081 A JP 2016077081A JP 2016077081 A JP2016077081 A JP 2016077081A JP 6722027 B2 JP6722027 B2 JP 6722027B2
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JP2017186816A (en
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正光 堤
正光 堤
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コウキ株式会社
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Description

本発明は河川、貯水池、ダム、海などに流れ出た油を回収するための吸着装置に関するものである。 The present invention relates to an adsorption device for collecting oil that has flowed out into a river, a reservoir, a dam, the sea, or the like.

タンカーなどの海難事故によって大量の油が流出した場合、この油は回収しなくてはならい。最も一般的な方法としては、オイルフェンスを張り巡らせて油の拡散を防止し、油の海岸漂着を回避することが最も重要とされている。
すなわち、浮遊原油の周囲にオイルフェンスを張り、このオイルフェンス内の浮遊原油を回収船上の作業者が長い柄付ひしゃくで汲み上げたり、又はオイルフェンスの中に親油性素材よりなるシート状の油吸着材を投入し、該油吸着材に油を吸着することにより流出油を回収することが出来る。さらに、油処理剤を散布することで化学的に処理する場合もある。 If a large amount of oil spills due to a marine accident such as a tanker, this oil must be collected. As the most common method, it is most important to stretch an oil fence to prevent the oil from spreading and prevent the oil from drifting to the coast.
That is, an oil fence is placed around the floating crude oil, and the floating crude oil in the oil fence is pumped up by a worker with a long handle with a long handle, or the sheet-shaped oil adsorption made of a lipophilic material inside the oil fence. The spilled oil can be recovered by charging the material and adsorbing the oil on the oil adsorbent. Further, it may be chemically treated by spraying a dispersant.

しかし、浮遊原油を作業者が長い柄付ひしゃくで汲み上げる方法では、汲み上げたものが油だけでなくほとんど水であるため作業効率は非常に悪い。また、大量の原油の流出事故に対して迅速に対応できず、流出した浮遊原油が次第に広範囲に拡散して海岸の近くの漁場や海苔、貝類の養殖場へ大量の原油が押し寄せ、水産資源を全滅し兼ねないという問題がある。 However, the method in which floating crude oil is pumped up by a worker with a long-handled dipper is very inefficient because not only oil but also almost all water is pumped up. In addition, a large amount of crude oil cannot be swiftly responded to, and the spilled floating crude oil gradually spreads over a wide area, flooding a large amount of crude oil to fisheries, seaweed, and shellfish farms near the coast, thus conserving marine resources. There is a problem that it cannot be wiped out.

また、シート状の油吸着材を投入して油の吸着を行う方法では、投下したシートが風の影響を受けやすいため、互いに重なったり、各シート間に隙間ができたりして流出油を完全に回収することが出来ない。一方、油を吸着したシートを引き上げて回収するのにも１枚１枚回収するため、多大な労力および時間を要する。
海上に流出した油の場合には、多少の波はあっても大きな流れはないために、シート状の油吸着材を投入して吸着することは出来るが、流れのある河川に流出した油を回収することは不可能である。 In addition, in the method of adsorbing oil by adding a sheet-shaped oil adsorbent, the dropped sheets are easily affected by the wind, so they may overlap each other or have a gap between each sheet, so that the spilled oil is completely removed. I can't collect it. On the other hand, it takes a lot of labor and time to pull up and collect the oil-adsorbed sheet one by one.
In the case of oil spilled into the sea, there is no big flow even if there are some waves, so it is possible to add a sheet-shaped oil adsorbent to adsorb it, but to collect the oil spilled into a flowing river. It is impossible to recover.

さらに、油処理剤を使用する方法は、油を分散して自然浄化の促進を図るもので、初期・少量の流出油のみ効果が期待できるに止まり、処理剤が残留して生態系（海産物など）に影響する虞も高い。
河川の油流出事故における流出油による汚染は、河川の流れで広範囲の下流水域に広がり、飲料水を犯す危険もあり、川底の石や砂利に付着した油を完全に取り除くことは極めて困難である。 Furthermore, the method of using an oil treatment agent disperses the oil to promote natural purification, and the effect can be expected only in the initial and small amount of spilled oil, and the treatment agent remains and the ecosystem (seafood products etc. ) Is also likely to affect.
Contamination due to oil spills in an oil spill accident in a river spreads over a wide range of downstream waters along the river, and there is a risk of drinking water.It is extremely difficult to completely remove oil adhering to stones and gravel on the river bottom. ..

特開２０００−５６４号に係る「油の回収方法と油吸着シート」は、長尺な油吸着シートを使用して流出油の回収作業を迅速に行うことのできる方法である。
ポリプロピレンを原料とし、スパンボンド法によって得られた長繊維よりなる原料の長尺な不織布をジグザグに折畳み、収納箱に格納する。油回収時においては、ジグザグに折畳んだ状態のままで海面又は水面に投下し、油吸着シートの両側に連結されるロープを小型船舶で両側より引張って延張し、流出油を取り囲んで回収する。 "Oil recovery method and oil adsorption sheet" according to Japanese Patent Laid-Open No. 2000-564 is a method that enables a quick recovery operation of spilled oil by using a long oil adsorption sheet.
A long nonwoven fabric, which is made of polypropylene and is made of long fibers and obtained by the spunbond method, is folded zigzag and stored in a storage box. When collecting oil, drop it on the sea surface or the water surface in the zigzag folded state, pull the ropes connected to both sides of the oil adsorption sheet from both sides with a small boat and stretch it to surround the spilled oil and collect it. To do.

特開２０００−３４５５４１号に係る「海上浮遊油回収用ガイドフェンス」は、海上に浮遊した油を散逸させることなく回収することのできる、集油性能に優れた海上浮遊油回収用ガイドフェンスである。帯状の可撓性シート材と、該可撓性シート材に対し、互いに平行に配列され挟着された柱状フロートと、該フロートの一端に接続可能で、互いに可撓性部材で接続されている前面板とを備えている。
特開２０００−５６４号に係る「油の回収方法と油吸着シート」 特開２０００−３４５５４１号に係る「海上浮遊油回収用ガイドフェンス」 The "floating floating oil recovery guide fence" according to Japanese Patent Application Laid-Open No. 2000-345541 is a guide fence for recovering floating floating oil on the sea, which can collect oil floating on the sea without dissipating it. .. A strip-shaped flexible sheet material, a columnar float arranged in parallel with and sandwiched from the flexible sheet material, and connectable to one end of the float, and are connected to each other by a flexible member. And a front plate.
"Oil recovery method and oil adsorption sheet" according to Japanese Patent Laid-Open No. 2000-564 "Guide fence for collecting floating oil on the sea" according to Japanese Patent Laid-Open No. 2000-345541

このように流出した油を回収する方法は色々知られているが、課題も残されている。本発明が解決しようとする課題は、流れがある河川、海、又はダムであっても、流出した油を効率よく回収をすることが出来る油の吸着装置を提供する。
There are various known methods for recovering the spilled oil, but there are still problems. The problem to be solved by the present invention is to provide an oil adsorbing device that can efficiently collect spilled oil even in a river, sea, or dam having a flow.

本発明に係る油吸着シートは四角形を成し、その材質は油の吸着性に優れたものが用いられ、具体的な材質に関しては限定しないが、主として植物系天然繊維（例えば、カポック）を主体とした布（不織布を含む）である。そして、この四角形の吸着シートのコーナーには穴を貫通してリング状の補強具を嵌めた形態としている。
実際の油吸着作業に当たっては、複数枚の吸着シートを繋いで両側にはロープを延ばして構成した吸着装置が用いられ、その形態は万国旗状としている。 The oil-adsorbing sheet according to the present invention has a quadrangular shape, and the material used has excellent oil-adsorbing properties, and although the specific material is not limited, it is mainly composed of plant-based natural fibers (for example, kapok). It is a cloth (including non-woven fabric). Then, a ring-shaped reinforcing tool is fitted through the hole at the corner of the rectangular suction sheet.
In the actual oil adsorption work, an adsorption device is used in which a plurality of adsorption sheets are connected to each other and ropes are extended on both sides.

複数枚の吸着シートはその上縁が繋がっているが、下縁側コーナーに穴を設けることで、この穴を利用して連結具にて隣り合う吸着シートの下縁側を繋ぐことが出来る。また、コーナーに設けている穴に連結具を係止して２枚の吸着シートを重ねた状態で使うことも出来る。
そこで、両側へ延びたロープを用いて小型船舶で両側より引張って延張し、流出油を取り囲んで回収することが出来、また河川に流れる油を回収する場合には、両側のロープは流れを跨いで両岸に固定される。 The upper edges of the plurality of suction sheets are connected to each other, but by forming a hole at the lower edge side corner, the holes can be used to connect the lower edges of the adjacent suction sheets with a connector. Further, it is also possible to use a state in which two suction sheets are stacked by locking a connecting tool in a hole provided at a corner.
Therefore, using a rope that extends to both sides, a small vessel can be pulled and extended from both sides to surround and collect the spilled oil. It is fixed on both sides by straddling.

本発明の吸着シートの具体的な材質は限定しないが、例えば天然繊維であるカポックを使用したものであれば優れた吸着力を有し、吸着シートの重量に対してその３０倍以上の油を吸着することが出来る。そして、１枚当たりの吸着性が高いために使用する吸着シートの枚数は少なくて済み、結果的には経済性に優れている。
また、カポックは繊維の約８０％が中空で撥水性があり、その為に水を寄せ付けず、油を吸着した後であっても水面に浮くことが出来、使用後の回収が便利である。 Although the specific material of the adsorption sheet of the present invention is not limited, for example, if a natural fiber such as kapok is used, it has an excellent adsorption force, and 30 times or more of oil is added to the weight of the adsorption sheet. Can be adsorbed. Further, since a single sheet has a high suction property, the number of suction sheets used can be small, and as a result, it is excellent in economic efficiency.
Further, since about 80% of the fibers of the Kapok are hollow and have water repellency, the Kapok can float on the water surface even after adsorbing the oil without attracting water, and is convenient for collection after use.

そして、天然繊維カポックを主体とした吸着シートは環境に優しく、繊維が中空になっている為に吸着した油がした垂れ落ちることも殆どない。
一方、コーナーには穴を貫通しているために、該穴に連結具を係止して下縁側に別の吸着シートを繋ぐことが出来、また、流出した油の量が多い場合には、２枚乃至３枚重ねで使うことも可能となる。 The adsorption sheet mainly composed of natural fiber kapok is environmentally friendly, and the adsorbed oil hardly drips down because the fiber is hollow.
On the other hand, since the hole penetrates the corner, it is possible to lock the connecting tool in the hole to connect another suction sheet to the lower edge side, and when the amount of oil that has flowed out is large, It is also possible to stack two or three sheets.

本発明に係る油吸着シートを示す実施例。An example showing an oil adsorption sheet concerning the present invention. 複数枚の吸着シートの上縁にロープを通して万国旗状とした油吸着装置。An oil adsorbing device in which a rope is put on the upper edges of a plurality of adsorbing sheets to make a national flag. 油吸着装置の隣り合う吸着シートの下縁側穴を連結具にて繋いだ場合。When connecting the lower edge side holes of adjacent adsorbing sheets of the oil adsorbing device with a connecting tool. 穴に係止する連結具を示す具体例。The specific example which shows the connection tool latched in a hole. 油吸着装置を示す他の実施例。Another Example which shows an oil adsorption device.

図１は本発明に係る油の吸着シート１を示している実施例である。該吸着シート１は天然繊維カポックを主体とした不織布であり、該カポックはその繊維が中空状態で撥水性があり、約８０％が中空と成っている。その為に、該吸着シートは非常に軽くて水に浮くことが出来、しかも自重に対して約３０倍以上の油を吸着することが可能である。すなわち、１枚当たりの油吸着量が大きく、しかも油を吸着した状態であっても水に浮くことが出来る。その為に、油を吸着した吸着シートの回収は非常に楽である。 FIG. 1 is an embodiment showing an oil adsorption sheet 1 according to the present invention. The adsorption sheet 1 is a non-woven fabric mainly composed of natural fiber kapok, and the fiber of the kapok is hollow and water repellent, and about 80% is hollow. Therefore, the adsorption sheet is very light and can float on water, and it is possible to adsorb about 30 times or more oil as compared with its own weight. That is, the amount of oil adsorbed per sheet is large, and even if oil is adsorbed, it can float on water. Therefore, it is very easy to collect the adsorption sheet that adsorbs the oil.

図１に示す吸着シート１は四角形を成して、その各コーナーには穴２，２・・・が貫通し、穴２，２・・・の内周りには補強用のリング３，３・・・が嵌っている。この油吸着シート１は１枚で使用されることは殆どなく、一般的には複数枚の吸着シート１，１・・・が左右方向に繋がれて万国旗状を成した吸着装置を構成し、これにて海や湖に流れた油を取り囲んで回収することが出来ようにしている。 The suction sheet 1 shown in FIG. 1 has a quadrangular shape, and holes 2, 2,... Are pierced through the respective corners thereof, and reinforcing rings 3, 3,.・・ is fitted. This oil adsorbing sheet 1 is rarely used as a single sheet, and generally, a plurality of adsorbing sheets 1, 1,... , With this, the oil that has flowed into the sea or lake can be surrounded and collected.

図２は複数枚の吸着シート１，１・・・を左右方向に繋いだ油吸着装置４を示している実施例である。油吸着装置４は同図に示すように上縁５，５・・・は折り返されてロープ６を抱き込み、各吸着シート１，１・・・の両側縁が互いに重なり合うように上縁５，５・・・にて繋がっている。そして、上記ロープ６は両側の吸着シート１，１から外方向へ大きく延びている。 2 is an embodiment showing an oil adsorption device 4 in which a plurality of adsorption sheets 1, 1... As shown in the figure, the oil adsorbing device 4 has the upper edges 5, 5... Folded around to embrace the rope 6, and the upper edges 5, 5... It is connected at 5... The rope 6 largely extends outward from the suction sheets 1 and 1 on both sides.

このように構成した油吸着装置４を使って流れ出た油を回収する具体的な方法に関しては特に限定しないが、両側へ延びるロープ６，６を船に繋ぎ、船を走らせることで流出した油の周囲を取り囲むように包囲することが出来る。
取り囲んだ領域を次第に縮小するならば、個々の吸着シート１，１・・・が海面に浮いている油に接することで該油は吸着される。 Although there is no particular limitation on the specific method of collecting the oil that has flowed out using the oil adsorption device 4 configured in this way, the oil that has flowed out by connecting the ropes 6 and 6 extending to both sides to the ship and running the ship Can be surrounded to surround the perimeter of.
When the enclosed area is gradually reduced, the oil is adsorbed by the individual adsorption sheets 1, 1... Contacting the oil floating on the sea surface.

ところで、本発明の吸着シート１は図１に示すように各コーナーにはリング３，３・・・が嵌って、補強した穴２，２・・・を形成している。そこで、この穴２，２・・・を利用することで連結具を介して他の吸着シート１を繋ぐことが出来る。
図３は図２に示した油吸着装置４の吸着シート１の下縁側に設けている穴２，２・・・を連結具７，７・・・にて繋いだ場合を示している。 By the way, as shown in FIG. 1, the suction sheet 1 of the present invention has rings 3, 3... Fitted in each corner to form reinforced holes 2, 2. Therefore, by using the holes 2, 2,..., Other suction sheets 1 can be connected via the connecting tool.
3 shows a case in which the holes 2, 2... Provided on the lower edge side of the adsorption sheet 1 of the oil adsorption device 4 shown in FIG.

図２に示す油吸着装置４を河川の両岸の間に掛け渡して配置する場合、川の流れによって上縁５に縫付けているロール６は滑らかな凹状に湾曲し、その為に各吸着シート１，１・・・の下縁側は広がって、側縁８，８の間には空間９が形成される。
そこで、上記空間９が大きくならないように吸着シート１，１・・・の下縁側に設けている穴２，２に係止する連結具７によって連結することが出来る。 When the oil adsorbing device 4 shown in FIG. 2 is arranged so as to be stretched between both banks of the river, the roll 6 sewn to the upper edge 5 is curved in a smooth concave shape due to the flow of the river, and therefore each adsorbing device The lower edges of the sheets 1, 1... Spread out, and a space 9 is formed between the side edges 8, 8.
Therefore, it is possible to connect the suction sheets 1, 1... By connecting tools 7 that engage with the holes 2, 2 provided on the lower edge side so that the space 9 does not become large.

このように、下縁側の穴２，２・・・を連結具７，７・・・によって連結することで、空間９の拡大を防止することが出来ると共に、流れによって油吸着装置全体が大きく湾曲することを抑制出来る。ここで、穴に係止する連結具の具体的な構造は特に限定しないことにする。
図４はこの連結具の１具体例を示した場合であり、（ａ）は正面図、（ｂ）は側面図をそれぞれ表していて、同図の１０は係止部、１１は繋ぎ部を示し、両係止部１０，１０が繋ぎ部１１によって繋がれている。 In this way, by connecting the holes 2, 2... On the lower edge side by the connecting members 7, 7..., it is possible to prevent the space 9 from expanding, and the entire oil adsorbing device is largely curved by the flow. Can be suppressed. Here, the specific structure of the connecting tool that locks in the hole is not particularly limited.
4A and 4B show a specific example of this connecting tool, in which FIG. 4A is a front view and FIG. 4B is a side view, in which 10 is a locking portion and 11 is a connecting portion. As shown, both locking portions 10 and 10 are connected by a connecting portion 11.

上記繋ぎ部１１は湾曲自在な材質から成り、係止部１０はスリット溝１２，１２・・・が形成されて複数の係止片１３，１３・・・を有している。この係止部１０は先端外径ｄを基部外径Ｄより小さくした円錐台形としていて、この先端を穴２に嵌めて押圧するならば、各スリット溝１２，１２・・・は縮小して係止部１０の外径は縮まり、基部が穴２を貫通したところで各係止片１３，１３・・・は外方向へ拡張して係止部１０が穴２から外れることはなくなる。すなわち、係止部１０は穴２に係止する。
したがって、この係止部１０はワンタッチで穴２に嵌って係止することが出来、両側の吸着シート１，１を簡単に繋ぐことが可能である。 The connecting portion 11 is made of a bendable material, and the locking portion 10 is formed with slit grooves 12, 12... And has a plurality of locking pieces 13, 13. The engaging portion 10 has a frustoconical shape in which the outer diameter d of the tip is smaller than the outer diameter D of the base. If the tip is fitted into the hole 2 and pressed, the slit grooves 12, 12... The outer diameter of the stopper 10 is reduced, and when the base portion penetrates the hole 2, the locking pieces 13, 13... Extend outward and the locking portion 10 does not come off the hole 2. That is, the locking portion 10 locks in the hole 2.
Therefore, the locking portion 10 can be fitted and locked in the hole 2 with one touch, and the suction sheets 1, 1 on both sides can be easily connected.

図５は油吸着装置１４を示す他の実施例である。この油吸着装置１４は前記図２に示す油吸着装置の各吸着シート１ａ，１ａ・・・の下縁側に別の吸着シート１ｂ，１ｂ・・・を連結して構成している。すなわち、油吸着装置の吸着シート１ａ，１ａ・・・の下縁側穴２ａ，２ａ・・・に別の吸着シート１ｂ，１ｂ・・・の上縁側穴２ｂ，２ｂ・・・を連結具７，７・・・を介して繋いでいる。
図２に示す油吸着装置４では流出した油の吸着が十分でない場合、図５に示すように別の吸着シート１ｂ，１ｂ・・・を繋ぐことでより多くの油の吸着が可能となる。 FIG. 5 shows another embodiment of the oil adsorption device 14. This oil adsorbing device 14 is configured by connecting another adsorbing sheet 1b, 1b... To the lower edge side of each adsorbing sheet 1a, 1a... Of the oil adsorbing device shown in FIG. That is, the upper edge holes 2b, 2b... of the other suction sheets 1b, 1b... Are connected to the lower edge holes 2a, 2a. It connects through 7...
When the oil adsorbing device 4 shown in FIG. 2 does not sufficiently adsorb the oil that has flown out, it is possible to adsorb more oil by connecting the other adsorbing sheets 1b, 1b... As shown in FIG.

この油吸着装置１４の場合においても、別に繋いだ吸着シート１ｂ，１ｂ・・・の下縁側の穴２ｂ，２ｂ・・・を連結具７，７・・・を介して繋ぐことで、隣り合う吸着シート１ｂ，１ｂ・・・に形成される空間の拡大を抑制することが出来る。 Also in the case of this oil adsorbing device 14, the adjoining adsorbing sheets 1b, 1b... Are connected to each other by connecting the holes 2b, 2b. The expansion of the space formed in the suction sheets 1b, 1b... Can be suppressed.

一方、上記吸着シート１，１・・・の各コーナーに設けている穴２，２・・・を利用して、複数枚を重ねた油吸着装置として構成することも可能である。これも、全ての吸着シート１，１・・・を２枚重ね形態とする必要はなく、例えば１枚おきに２枚重ね構造とすることが出来、その形態は自由である。 On the other hand, it is also possible to construct an oil adsorbing device by stacking a plurality of sheets by utilizing the holes 2, 2... Provided at each corner of the adsorbing sheets 1, 1. Also in this case, it is not necessary to form all the suction sheets 1, 1... In a two-ply structure, and for example, it is possible to adopt a two-ply structure in which every other sheet is stacked, and the form is arbitrary.

一口に油と言ってもその種類は色々あり、例えばＡ重油、Ｂ重油、Ｃ重油、灯油、又は機械油などであるが、本発明の天然繊維カポックを主体とした吸着シートは、上記油の種類が如何様であってもその吸着力は従来の吸着シートに比較して数倍以上の効果を発揮することが出来る。 There are various kinds of oils in one bite, for example, A heavy oil, B heavy oil, C heavy oil, kerosene, or mechanical oil. Whatever the type, the suction power can be more than several times that of conventional suction sheets.

１ 吸着シート
２ 穴
３ リング
４ 油吸着装置
５ 上縁
６ ロープ
７ 連結具
８ 側縁
９ 空間
10 係止部
11 繋ぎ部
12 スリット溝
13 係止片
14 油吸着装置





















1 Adsorption Sheet 2 Hole 3 Ring 4 Oil Adsorption Device 5 Upper Edge 6 Rope 7 Connecting Tool 8 Side Edge 9 Space
10 Locking part
11 joint
12 slit groove
13 Locking piece
14 Oil adsorption device





















Claims (4)

海、河川、ダム、池などに流出した油を吸着する為の吸着装置において、該吸着装置は四角形をした吸着シートの上縁にロープを通して連結すると共に両側へは上記ロープを延ばして万国旗状の形態とし、上記吸着シートは天然繊維又はポリプロピレンを主体とした布から成って、四角形のコーナーには補強リングを嵌めた穴を形成したことを特徴とする油の吸着装置。 In an adsorption device for adsorbing oil that has flowed out to the sea, rivers, dams, ponds, etc., the adsorption device is connected to the upper edge of a rectangular adsorption sheet through a rope, and the rope is extended to both sides to form a national flag. The above-mentioned adsorption sheet is made of a cloth mainly composed of natural fibers or polypropylene, and a hole in which a reinforcing ring is fitted is formed at a square corner. 上記吸着シートの下縁側の穴に連結具を係止して隣り合う吸着シートを繋いだ請求項１記載の油の吸着装置。 The oil adsorbing device according to claim 1, wherein a connecting tool is locked in the hole on the lower edge side of the adsorbing sheet to connect the adsorbing sheets adjacent to each other. 上記吸着シートの下縁側に別の吸着シート連結した形態とし、下縁側の穴と連結される吸着シートの上縁側の穴に連結具を係止して繋いだ請求項１、又は請求項２記載の油の吸着装置。 3. A form in which another suction sheet is connected to the lower edge side of the suction sheet, and a connecting tool is engaged and connected to a hole on the upper edge side of the suction sheet that is connected to a hole on the lower edge side. Oil adsorption device. 上記吸着シートに他の吸着シート重ね合わせ、各コーナーに設けた穴に連結具を係止して繋いだ請求項１記載の油の吸着装置。 2. The oil adsorbing device according to claim 1, wherein another adsorbing sheet is superposed on the adsorbing sheet, and a connecting tool is engaged and connected to the holes provided at each corner.
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